Online listserve & email list hosting made simple

Dear SRFI editors:
Please update SRFI-105, using the attached.
The only substantive change is renaming "nfx", in this case, to "$nfx$". I decided to rename it to include "$" so it's unlikely to conflict with user-defined terms, but kept "nfx" for continuity with its previous definition.
Some minor editorial nits (hopefully improvements) were also added.
I think we're pretty much at the end, but let's wait a few days for last-minute comments.
--- David A. Wheeler